<template>
  <!--为echarts准备一个具备大小的容器dom-->
  <div id="emain" ref="emain" style="width: 100%; height: 400px"></div>
</template>
<script>
import { totaldata } from '@/api/order';
import echarts from 'echarts'
export default {
  name: 'emdchart',
  data () {
    return {
      charts: '',
    }
  },
  methods: {
    async getData () {
      let res = await totaldata()
      let { xData, amountData, orderData } = res.data
      this.drawPie(xData, amountData, orderData)
    },
    drawPie (xData, amountData, orderData) {
      this.charts = echarts.init(this.$refs.emain)
      this.charts.setOption({
        title: {
          text: 'Stacked Area Chart'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#6a7985'
            }
          }
        },
        legend: {
          data: ['Email', 'Union Ads', 'Video Ads', 'Direct', 'Search Engine']
        },
        toolbox: {
          feature: {
            saveAsImage: {}
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            type: 'category',
            boundaryGap: false,
            data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ],
        series: [
          {
            name: 'Email',
            type: 'line',
            stack: 'Total',
            areaStyle: {},
            emphasis: {
              focus: 'series'
            },
            data: [120, 132, 101, 134, 90, 230, 210]
          },
          {
            name: 'Union Ads',
            type: 'line',
            stack: 'Total',
            areaStyle: {},
            emphasis: {
              focus: 'series'
            },
            data: [220, 182, 191, 234, 290, 330, 310]
          },
          {
            name: 'Video Ads',
            type: 'line',
            stack: 'Total',
            areaStyle: {},
            emphasis: {
              focus: 'series'
            },
            data: [150, 232, 201, 154, 190, 330, 410]
          },
          {
            name: 'Direct',
            type: 'line',
            stack: 'Total',
            areaStyle: {},
            emphasis: {
              focus: 'series'
            },
            data: [320, 332, 301, 334, 390, 330, 320]
          },
          {
            name: 'Search Engine',
            type: 'line',
            stack: 'Total',
            label: {
              show: true,
              position: 'top'
            },
            areaStyle: {},
            emphasis: {
              focus: 'series'
            },
            data: [820, 932, 901, 934, 1290, 1330, 1320]
          }
        ]
      })
      window.addEventListener('resize', this.charts.resize)
    },
  },
  //调用
  created () {
    this.getData();
  },
  beforeDestroy () {
    window.removeEventListener('resize', this.charts.resize);
  },
}
</script>
<style scoped>
* {
  margin: 0;
  padding: 0;
  list-style: none;
}
</style>
